Beam-wave Coupling in a Double-beam Gyrotron Traveling Wave Amplifier
| Autor: | Ji-Run Luo, Chong-Qing Jiao |
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| Rok vydání: | 2007 |
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| Zdroj: | PIERS Online. 3:192-196 |
| ISSN: | 1931-7360 0609-0621 |
| DOI: | 10.2529/piers060906211715 |
| Popis: | A linear theory is used to study the beam-wave coupling in a double-beam gyrotrontraveling wave amplifler (Gyro-TWA). Numerical results show that the beam-wave coupling inthis type of amplifler excites six waves, which include one constant-amplitude backward wave,and flve forward waves consisting of two growing waves, two decaying waves and one constant-amplitude wave. The growing wave, whose growth rate is much larger than that of the other,has a larger operating bandwidth which is approximately the superposition of the interactionbandwidths of the two single-beams in the Gyro-TWA.DOI: 10.2529/PIERS0609062117151. INTRODUCTION High power and broad bandwidth capability of the gyrotron traveling wave amplifler makes it anattractive source of coherent radiation in the millimeter and sub-millimeter wavelength ranges.Gyro-TWAs are applied very broadly, especially in radar and communication systems. Steadyprogress in theory and experiment has been made over an extended period of time. Major advancesin Gyro-TWA performances have been reported in the review papers [1{3].The Gyro-TWA interaction comes from the coupling between the electron beam cyclotron modeand the waveguide mode, which respectively satisfy |
| Databáze: | OpenAIRE |
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